The 680s refers to the decade spanning from the year 680 to 689. This period is notable in history for various events, particularly in the context of the Islamic Caliphate, which was expanding during this time. The decade saw significant developments in governance, culture, and military campaigns. In addition to political changes, the 680s were marked by the Battle of Karbala in 680, a pivotal event in Islamic history. This battle led to the martyrdom of Husayn ibn Ali, the grandson of the Prophet Muhammad, and is commemorated annually by millions of Muslims during the observance of Ashura.